Finding the Fourth Proportional to 9,877.57, 13,631.06 and 5,401.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,877.57 : 13,631.06 = 5,401.34 : x
2. Step 2: Convert to fraction form
   9,877.57/13,631.06 = 5,401.34/x
3. Step 3: Cross multiply
   9,877.57x = 13,631.06 × 5,401.34
4. Step 4: Simplify right side
   9,877.57x = 73,625,989.62
5. Step 5: Solve for x
   x = 73,625,989.62/9,877.57
6. Step 6: Final answer
   x = 7,453.86